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Download Perspectives on Biodiversity: Valuing Its Role in an by National Research Council, Division on Earth and Life PDF

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By National Research Council, Division on Earth and Life Studies, Commission on Life Sciences, Committee on Noneconomic and Economic Value of Biodiversity

Document from the Committee on Noneconomic and financial price of Biodiversity. stories how medical wisdom approximately those values may be utilized to administration of organic assets. makes use of case reviews. Advises managers on the right way to enhance their judgements utilizing information regarding the price of biodiversity. Softcover.

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Additional resources for Perspectives on Biodiversity: Valuing Its Role in an Everchanging World

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For managers of biodiversity, there are practical implications in the observations that some species have many locally distinct populations but others show little geographic variation and that some species have no close relatives but others occur in genera that include hundreds of species. Biologists have recognized that current taxonomy (the classification of organisms on the basis of the evolution of species from their ancestors) is sometimes inadequate for identifying appropriate units for conservation.

Com on Fri Nov 7 18:27:40 2003 32 PERSPECTIVES ON BIODIVERSITY taxon of monogenean trematode parasites, and the mountain beaver is home to the world’s largest flea, itself a long-branch taxon. The redwood and sequoia trees are sister species that form a long-branch taxon. They are distantly related to the dawn redwood of China, which is extinct in the wild but was preserved in Chinese monasteries and is itself a long-branch taxon. BIOLOGICALLY BASED RANKING AND RATING METHODS Biologists assess the importance of conserving biodiversity in various ways.

All rights reserved. edu) for research purposes are copyrighted by the National Academy of Sciences. Distribution, posting, or copying is strictly prohibited without written permission of the NAP. com on Fri Nov 7 18:27:40 2003 24 PERSPECTIVES ON BIODIVERSITY call this measure species richness; they imply no economic value by using rich or its opposite, poor. Only their presence (not their abundance) is taken into consideration in counting the number of species in an area. Species counts are the most visible and most widely known measures of biological diversity.

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